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4adc31fe11
I case any problem was discovered, you can still enable the legacy `default` directory instead. But the plan is to get rid of it in 6.0. Closes #16983
68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
[[breaking-changes-5.0]]
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== Breaking changes in 5.0
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This section discusses the changes that you need to be aware of when migrating
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your application to Elasticsearch 5.0.
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[float]
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=== Indices created before 5.0
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Elasticsearch 5.0 can read indices created in version 2.0 and above. If any
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of your indices were created before 2.0 you will need to upgrade to the
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latest 2.x version of Elasticsearch first, in order to upgrade your indices or
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to delete the old indices. Elasticsearch will not start in the presence of old
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indices. To upgrade 2.x indices, first start a node which have access to all
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the data folders and let it upgrade all the indices before starting up rest of
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the cluster.
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[IMPORTANT]
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.Reindex indices from Elasticseach 1.x or before
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=========================================
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Indices created in Elasticsearch 1.x or before will need to be reindexed with
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Elasticsearch 2.x in order to be readable by Elasticsearch 5.x. The easiest
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way to do this is to upgrade to Elasticsearch 2.3 or later and to use the
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`reindex` API.
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=========================================
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[float]
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=== Also see:
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* <<breaking_50_search_changes>>
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* <<breaking_50_mapping_changes>>
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* <<breaking_50_percolator>>
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* <<breaking_50_index_apis>>
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* <<breaking_50_settings_changes>>
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* <<breaking_50_allocation>>
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* <<breaking_50_rest_api_changes>>
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* <<breaking_50_cat_api>>
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* <<breaking_50_java_api_changes>>
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* <<breaking_50_packaging>>
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* <<breaking_50_plugins>>
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* <<breaking_50_fs>>
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include::migrate_5_0/search.asciidoc[]
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include::migrate_5_0/mapping.asciidoc[]
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include::migrate_5_0/percolator.asciidoc[]
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include::migrate_5_0/index-apis.asciidoc[]
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include::migrate_5_0/settings.asciidoc[]
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include::migrate_5_0/allocation.asciidoc[]
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include::migrate_5_0/rest.asciidoc[]
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include::migrate_5_0/cat.asciidoc[]
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include::migrate_5_0/java.asciidoc[]
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include::migrate_5_0/packaging.asciidoc[]
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include::migrate_5_0/plugins.asciidoc[]
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include::migrate_5_0/fs.asciidoc[]
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